摘要
把混凝土看作基体,气孔看成夹杂,并假定混凝土基体服从D-P屈服准则,通过引入能量密度支函数概念,并构造其函数逼近序列以解决其在气孔边界不可导的问题,最终导出了引气混凝土的宏观D-P屈服准则,并通过它研究了引气量对混凝土内摩擦系数的削弱影响规律.
The concrete is taken as the matrix, and the air holes produced in concrete as the inclusions. Based on the assumption of the D-P yield criterion for concrete matrix, the macroscopic D-P yield criterion for Air-entrained Concrete is finally derived by introducing the energy density supporting function and constructing the approximating function sequence to solve the non derivable problem on the boundary of the air hole for energy density supporting function. The decreasing influence of the air content on the inner friction coefficient of concrete is studied as well.
出处
《广东工业大学学报》
CAS
2009年第3期20-23,共4页
Journal of Guangdong University of Technology
基金
国家自然科学基金资助项目(50679022)
关键词
引气混凝土
能量密度支函数
有效摩擦系数
air-entrained concrete
energy density support function
effective friction coefficient
